Field induced transition of the S=1 antiferromagnetic chain with anisotropy

Abstract

The ground state magnetization process of the S=1 antiferromagnetic chain with the easy-axis single-ion anisotropy described by negative $D$ is investigated. It is numerically found that a phase transition between two different gapless phases occurs at an intermediate magnetic field between the starting and saturation points of the magnetization for $-1.49<D<-0.35$. The transition is similar to the spin flopping, but it is second-order and not accompanied with any significant anomalous behaviors in the magnetization curve. We also present the phase diagrams in the m-D and H-D planes which reveal a possible re-entrant transition.

6 pages, Revtex, with 6 eps figures, to appear in Phys. Rev. B (Sep. 1)

References in corpus (2)

• Magnetization process of the spin-1/2 XXZ models on square and cubic lattices
• Critical exponent in the magnetization curve of quantum spin chains

Cited by in corpus (9)

• Novel ordering of an S = 1/2 quasi one-dimensional Ising-like anitiferromagnet in magnetic field
• Longitudinal SDW order in a quasi-1D Ising-like quantum antiferromagnet
• Field-induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field
• Metamagnetism of antiferromagnetic XXZ quantum spin chains
• Spin-Reorientation Transition of Field-Induced Magnetic Ordering Phases in the Anisotropic Haldane System
• Spin flop in one-dimensional quantum antiferromagnets
• Field-Induced Quantum Spin Nematic Liquid Phase in the S=1 Antiferromagnetic Heisenberg Chain with Additional Interactions
• Spin nematic states in spin-1 antiferromagnets with easy-axis anisotropy
• Nematic Tomonaga-Luttinger Liquid Phase in an $S=1/2$ Ferromagnetic-Antiferromagnetic Bond-Alternating Chain